Benchtop Spectrophotometer CM-3630A is a state-of-the art ISO-Standard compliant measuring device for the pulp & paper industry


A vertically aligned Spectrophotometer in compliance with ISO standards used in the pulp and paper industry including ISO 2469 and ISO 2470. The instrument features a numerical UV-Control system which simplifies the process of calibration and measurement of colour, whiteness, and yellowness.

  • Benchtop Instrument with vertical alignment
  • Wavelength range 360-740nm
  • d:0° Sphere Geometry according to ISO 2469 & ISO 2470
  • Reflectance measurement
  • 2 Apertures MAV (8mm) / LAV (30mm)
Benchtop Spectrophotometer CM-3630A is a state-of-the art ISO-Standard compliant measuring device for the pulp & paper industry

Highly competitive markets, such as the paper, pulp and cellulose industry, require a commitment to top quality throughout.

The CM-3630 benchtop spectrophotometer ensures compliance to optical standards ISO 2469 and ISO 2470 used in the Pulp and Paper Industry. Used in combination with PaperManager software, values for colour, brightness, whiteness, and yellowness indices are calculated and displayed in full accordance with several international and national standards such as ISO, SCAN, DIN, TAPPI, CPPA and AFNOR.

Numerical UV-Control greatly simplifies calibration and adjustments to whiteness and tint. In just a few seconds, the CM-3630A is calibrated and ready for measurement, much faster and with conventional instruments. Utilising Numerical UV-Control results in a significant reduction in moving parts and reduced maintenance requirements.


  • d:0° geometry with 30mm measuring aperture, in full compliance with ISO, SCAN, DIN, TAPPI, CPPA and AFNOR.
  • Compatible with measurement data from the CM-3630
  • Built-in targeting camera for realtime and accurate positioning of samples
  • Additional smaller measurement aperture
  • Integrated mounts for tablet computer i.e. Windows tablet with Papermanager Software

Specifications & Downloads

Specifications & Downloads
Model CM-3630A

Illumination/viewing system

Reflectance: d:0° (diffused illumination, 0-degree viewing) Conforms to ISO 2469, JIS P8148, DIN 53145-1 and DIN 53145-2 standards.

Light-receiving element

Silicon photodiode array (dual 40 elements)

Spectral separation device

Diffraction grating

Wavelength range

360 nm to 740 nm

Wavelength pitch

10 nm

Reflectance range

0 to 200%; resolution: 0.01%

Light source

3 pulsed Xenon lamps

Measurement time

Within 1.5 seconds

Minimum interval between measurements

Within 2 sec (UV 100% measurement)

Within 3 sec (UV 0%/UV adjusted measurement)

Measurement/illumination area

LAV: ø 30/34 mm

MAV: ø  8/11 mm

Inter instrument agreement

Within ΔE*ab 0.2

(Based on average for 12 BCRA Series II color tiles; compared to values measured with a master body under Konica Minolta standard measurement conditions)


Colorimetric values:

Standard deviation within ΔE*ab 0.02 (White Calibration Plate)

Spectral reflectance:

Standard deviation within 0.1% (when a white calibration plate is measured 30 times at 10-second intervals after white calibration)

UV setting

100% / 0% / Adjusted

400 nm and 420 nm UV cutoff filters

(NUVC: Instantaneous numerical adjustment of UV with no mechanical filter movement required)


Using built-in camera; Software (not included) required.


USB 2.0 Full Speed


Dedicated AC adapter

Dimensions (W × H × D)

300 × 612 × 315 mm


16 kg

Operating temperature/humidity range

13 - 33°C, relative humidity 80% or less (at 35°C) with no condensation

For paper application it is recommended to perform the calibration of the instrument with reference standards ISO level 3 (IR3) supplied by RISE, Sweden. Specifications subject to change without prior notice.

CM-3630A Catalogue

Spectrophotometer dedicated for The Pulp & Paper Industry




Optional accessories for CM-3630A


Opacity JIG CM-A134

The Opacity Jig CM-A134 is equipped on one side with a white tile and on the opposite side with a black cavity and allows quick and precise opacity measurements of paper, films and similar materials. The Opacity Jig can be simply attached and de-attached without tools, but thanks to the turn able sample holder the Opacity Jig can be used also for thin samples for reflectance measurements.

Item Order Code: 1869-714


Powder Attachment CM-A510

The Powder Attachment CM-A510 holds Petri dishes with a diameter of 40 or 45 mm and allows the measurement of powder and grains without a glass protection plate between specimen and measuring aperture. Also suitable for pressed tablets wit a diameter of 40 mm.

Item Order Code: 9970273


Black Glass Tile CM-A511

High gloss black glass tile with high absorption. Due to the extreme long term stability perfect to use as background standard.

Item Order Code: 9970-1109

Related Industries and Applications

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